What is the oldest “original” casting that you use every day?

Mine is keeping my shop ass! (It is not comfy, but it’s better than a hot poker stick!).It is off of and old implement farm rake. 1890-1908’s-ish. This is the only chair in my shop. It is in mint original condition. I use it about six hours a day.

 

That would be the engine block in my 2001 Toyota Hilux: it's old enough now to vote and buy beer.

 

It might be an overstatement to says it gets used every day but mine is a Craftsman bench vise originally purchased by my father when I was 8 or 10 years old.